Technically US states are sovereign too :) ...and really, if you looked at the US states as separate economies you'd see many glaring dichotomies that would make you wonder how it can be considered a single economic entity.
No, Europe's not a country, but it behaves like one for trade and currency purposes and has no internal tariffs. Nor can Germany (for example) impose a tariff separately from the EU. So in this context, the EU might as well be a country.
No, Europe's not a country, but it behaves like one for trade and currency purposes and has no internal tariffs. Nor can Germany (for example) impose a tariff separately from the EU. So in this context, the EU might as well be a country.